56347990 has 8 divisors (see below), whose sum is σ = 101426400. Its totient is φ = 22539192.

The previous prime is 56347919. The next prime is 56348029. The reversal of 56347990 is 9974365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817390 + ... + 2817409.

It is an arithmetic number, because the mean of its divisors is an integer number (12678300).

Almost surely, 2^56347990 is an apocalyptic number.

56347990 is a deficient number, since it is larger than the sum of its proper divisors (45078410).

56347990 is a wasteful number, since it uses less digits than its factorization.

56347990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634806.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 56347990 is about 7506.5298240932. The cubic root of 56347990 is about 383.3770779736.

The spelling of 56347990 in words is "fifty-six million, three hundred forty-seven thousand, nine hundred ninety".